Thermal Analysis of Porous Pin Fin used for Electronic Cooling

Bhanja, Dipankar; Kundu, Balaram; Mandal, Pabitra Kumar

doi:10.1016/j.proeng.2013.09.172

Cited by 35 publications

(19 citation statements)

References 9 publications

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“…Having determined the optimum diameter and length of a pin fin, the researchers attempted various alterations on conventional pin fins for achieving a further improvement in its performance. Among these, porous pin fins [Seyf and Layeghi (2010) [Bhanja et al (2013)], porousfins are good passive means to provide high heat transfer rate for small electronic parts in a light-weight package. Most of the previous papers indicate that porous fins are good in natural convective flows.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance Improvement of a Fin-Arrayed Horizontal Heat Sink Corroborating Optimal Orientation Angle

2020

IJITEE

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The present study deals with a simple but effective technique for improving the forced convective cooling of a horizontal heat sink with vertical pin-fin-array.The pin fins are embedded in a staggered arrangement on thebase-plate of the horizontal sink. Air, while passing through the fin-array, convects the heat conducted from the solid base-plate to the fins’ surface. The objective of this paper is to examine the role of the orientation angle (  ) on the performance of the heat sink.  is varied from  0 to  360 by rotating the horizontal sink about a vertical axis passing through the center of the sink. A detailed CFD (computational fluid dynamics) study is coordinated over a wide range of inflow Reynolds number ( Re ) to explore the possibility for obtaining an optimum orientation angle (  ) for which Nusselt number ( Nu ) would be the maximum. Results indicate that optimum angle hovers around    120 regardless of the values of Re .

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Section: Introductionmentioning

confidence: 99%

Thermal Performance Improvement of a Fin-Arrayed Horizontal Heat Sink Corroborating Optimal Orientation Angle

2020

IJITEE

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“…These approaches investigate the thermal behaviour of solid and porous fins under different operating conditions. Examples of some related research includes Runge-Kutta [9e11], Galerkin's method of weighted residual [12,13], least square method [14], various collocation methods -Haar wavelet [15,16], -spectral [17], -Chebyshev [18,19]; Spectral element [20]; and Legendre [21] Adomian decomposition method [22,23], Differential transform method [24e26], variational iteration method [27], and Homotopy analysis method [28] Nevertheless, to achieve the nonlinear analysis of the heat transfer problem, it is often a daunting task to develop the generalized closed-form solution.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Inclination on the Thermal Performance of Porous Fin Heatsink using Pseudospectral Collocation Method

Oguntala¹,

Sobamowo²,

Abd‐Alhameed³

et al. 2019

Karbala International Journal of Modern Science

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Numerical investigation of inclination effect on the thermal performance of a porous fin heat sink is presented. The developed thermal model is solved using pseudo-spectral collocation method (PSCM). Parametric studies are carried out using PSCM, and the thermal characterization of heat sink with the inclined porous fin of rectangular geometry is presented. Results show that heat sink of inclined porous fin exhibits higher thermal performance than heat sink of vertical porous fin operating under the same thermal conditions with the same geometrical configurations. Performance of inclined or tilted fin increases with decrease in length-thickness aspect ratio. However, increase in the internal heat generation parameter decreases the fin temperature gradient which invariably decreases the heat transfer performance of the fin. Furthermore, the results of the pseudo-spectral collocation method are compared with the results of Runge-Kutta method. Excellent agreement is established between the results of the non-convectional numerical method and the results of Runge-Kutta, which validates the accuracy of the method for analysis of nonlinear heat transfer problems. The results presented in this paper, hopefully, serves as motivation for the design and optimization of thermally-enhanced heatsinks.

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“…The performance of wet fins when the humidity ratio is considered as a function temperature was analytically approximated by the Adomian decomposition technique in Kundu (2009). The methodology based on the Adomian polynomials was implemented to compute the porosity effects over extended surfaces of rectangular, convex parabolic and two exponential types in Kundu et al (2012) and Bhanja et al (2013). The heat transfer through porous fins was found to be significant as compared to that of solid fins.…”

Section: Introductionmentioning

confidence: 99%

A reliable convergent Adomian decomposition method for heat transfer through extended surfaces

Türkyılmazoğlu

2018

HFF

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Purpose This paper aims to revisite the traditional Adomian decomposition method frequently used for the solution of highly nonlinear extended surface problems in order to understand the heat transfer enhancement phenomenon. It is modified to include a parameter adjusting and controlling the convergence of the resulting Adomian series. Design/methodology/approach It is shown that without such a convergence control parameter, some of the published data in the literature concerning the problem are lacking accuracy or the worst is untrustful. With the proposed amendment over the classical Adomian decomposition method, it is easy to gain the range of parameters guaranteeing the convergence of the Adomian series. Findings With the presented improvement, the reliable behavior of the fin tip temperature and the fin efficiency of the most interested from practical perspective are easily predicted. Originality/value The relevant future studies involving the fin problems covering many physical nonlinear properties must be properly treated as guided in this paper, while the Adomian decomposition method is adopted for the solution procedure.

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Thermal Analysis of Porous Pin Fin used for Electronic Cooling

Cited by 35 publications

References 9 publications

Thermal Performance Improvement of a Fin-Arrayed Horizontal Heat Sink Corroborating Optimal Orientation Angle

Thermal Performance Improvement of a Fin-Arrayed Horizontal Heat Sink Corroborating Optimal Orientation Angle

Numerical Investigation of Inclination on the Thermal Performance of Porous Fin Heatsink using Pseudospectral Collocation Method

A reliable convergent Adomian decomposition method for heat transfer through extended surfaces

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